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Thread: where is the oil pressure release valve located?

  1. #1
    Senior Member
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    hi all,

    when it comes to motors i'm a nood.

    anyhow, was driving my car around the other day.
    when i burning oil, stopped and looked under the car to see
    oil dripping onto the exhaust.
    i think its leaking from somewhere at the back of the block.

    when motor rev'd over 2,000RPM oil pressure skyrockets!
    orido commented that it might be a failed oil pressure release valve or the oil pump itself?!

    anyone shed some light?
    AE86....robbing me! check the build.
    http://www.ae86drivingclub.com.au/fo...read.php?t=445

  2. #2
    gunbz-r
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    you have an oil leak lol.

    need a bit more info dude, like oil colour or smell, and its good to know you finally got it driving.

  3. #3
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    cheers rhys,

    well when i inspected the under neath, its apparent that the leak may of been there a while,
    but now its seems its grown, as its all over the firewall and bellhousing, its orange-brown (oil has just been changed)
    and smells like oil!

    oh and its a 4AC.
    AE86....robbing me! check the build.
    http://www.ae86drivingclub.com.au/fo...read.php?t=445

  4. #4
    gunbz-r
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    try and get a pic for me, or bring it to me lol, oils smell different by the way.

    Its a tricky one to diag. I need to be able to see it.

  5. #5
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    Hey,
    When the car is in idle, the oil pressure is fine but once rev'd over 2,000 rpm the oil pressure sky rockets,
    the oil seems to be leaking onto or out of the exhaust. I don't have any pics yet but will post some up tomorrow. The idle is now also quite jumpy. The oil is normal consistent colour, goldish, but the oil I am using is a thicker oil - I think it is 20-50.

    any clues?
    AE86....robbing me! check the build.
    http://www.ae86drivingclub.com.au/fo...read.php?t=445

  6. #6
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    where is the oil pressure release valve located?
    AE86....robbing me! check the build.
    http://www.ae86drivingclub.com.au/fo...read.php?t=445

  7. #7
    Senior Member SLO-030's Avatar
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    With what you have said it sounds like a f**ked rear main seal...
    bass_2000_au_au@hotmail.com says:
    they see me drivin....a 30....neons blaring....#####s lookin dirty....look at my dirty 30

  8. #8
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    <div class='quotetop'>QUOTE (Craig_AE86 @ Aug 12 2008, 06:04 PM) </div>does that mean i have to take the head off to fix it?
    AE86....robbing me! check the build.
    http://www.ae86drivingclub.com.au/fo...read.php?t=445

  9. #9
    Oldschool Member
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    First things first - you need to pinpoint where the oil is coming from. Get a couple of cans of degreaser, and go mad. Get it REALLY clean. Run the engine for a few minutes and have a look to see where the oil is coming from.

    You say that it is on the exhaust - considering your exhaust runs the whole length of your car, it would be easier if you specified where... Also, is the oil dripping directly onto the exhaust, or is it being sprayed onto the firewall and then falling onto the exhaust?

    If it is a rear main seal, you will have to take the whole motor out.

  10. #10
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    you don't need to take the motor out to do the rear main seal. When we did mine, we removed gearbox, clutch, flywheel, etc. Having high oil pressure seems like a relief valve problem

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